| 1. | Flux entrapped in the joints is the principal cause of low strength or failure .
裂缝中封存有焊药是强度不足或断裂的主要原因。 |
| 2. | The result shows that it is mainly caused by the martensite with high hardness produced after rail absorbing frictional heat
断裂的主要原因是钢轨在吸收摩擦热后产生了高硬度的马氏体。 |
| 3. | And it is also the main reason that induces the premature rupture and the reverse collapse of a chimney
爆破切口形成产生爆破荷载对上部结构的断裂有相当影响，是简体反向倾转及过早断裂的主要原因。 |
| 4. | The results show that the main causes of fracture is composition segregation and low strength resut from no quenching and tempering treatment
结果表明，产生断裂的主要原因是材料内部成分偏析及未按要求对材料进行调质处理导致材料的强度较低。 |
| 5. | The results of visual inspection , microscopic inspection and corrosion product analysis revealed that stress corrosion was the main cause of the grid collapse
通过对断裂钢丝进行宏观、显微及腐蚀产物的分析，确定钢丝断裂的主要原因为应力腐蚀开裂。 |
| 6. | Abstract : the breakdown of 82b rod stock has been evaluated andanalyzed . results indicate that the intrinsic defects in the rod stock is the main cause to the failure
文摘:对某些批号的82b盘条断裂进行了检验分析。结果表明，盘条内部存在缺陷是造成断裂的主要原因。 |
| 7. | The results showed that the partial liquid phase was one of the main reasons for the premature fracture of the material during high temperature tension over 518
结果表明：局部液相是导致该复合材料在518以上高温拉伸试样过早断裂的主要原因之一，为该材料超塑成形工艺参数的确定提供了参考依据。 |
| 8. | The main causes of breakage were concrete tube pile instability of foundation pit or failure of its bracing , soil squeeze due to pile driving , incorrect excavation and incorrect heap of soil
摘要造成混凝土管桩倾斜与断裂的主要原因为基坑边坡失稳或支护结构破坏、沉桩挤土效应以及挖土与堆土不当等。 |
| 9. | Combining with the results of implant test , the conclusion that the main reason of dropping the strength of austenite zone is the micro - crack located in the tip of flake graphite and marten site is drawn
结合插销试验结果提出了马氏体相变过程中，在片状石墨尖端及马氏体组织中造成的微裂纹是奥氏体区强度下降并进而在外力作用下断裂的主要原因。 |
| 10. | The unhomogeneity of the loop ' s structure in the remeshing lines was found after the vascular prosthesis has been warp knitted , which is the main reason why . the rupturing position of the prosthesis endured circumferential traction localized preferentially on the remeshing lines
研究还发现在经编加工后线圈结构在连接部位已存在一定的不均匀性，这是人造血管在周向拉伸中该部位具有高断裂的主要原因。 |
